Question

A rectangular ground has the breadth 80% of length and perimeter is 360m.find the planting the ground at rs 5 per m^

Answer 1

Step-by-step explanation:

this is the answer of your question

Answer 2

Answer:

Rs 40000

Step-by-step explanation:

Soln

Given

let length (l) be x

breadth ( b)= 80% of x

= (80/100) *x

= 8x/10

perimeter= 360m

2(l+b) = 360

2[x+ ( 8x/10)] =360

2[(10x +8x)/10]= 360

2(18x/10) = 360

36x/10 =360

36x =360*10

36x. = 3600

x. =3600/36

x. = 100

Now

length= x= 100m

breadth = 80%*x

=[ 80/100]*100

= 80m

again

Area= l*b

= 100* 80

= 8000m

The cost of ground= Area * Rs per m²

= 8000*5

= Rs 40000